Finding the Fourth Proportional to 1,975.78, 2,726.52 and 1,277.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,975.78 : 2,726.52 = 1,277.56 : x
2. Step 2: Convert to fraction form
   1,975.78/2,726.52 = 1,277.56/x
3. Step 3: Cross multiply
   1,975.78x = 2,726.52 × 1,277.56
4. Step 4: Simplify right side
   1,975.78x = 3,483,292.89
5. Step 5: Solve for x
   x = 3,483,292.89/1,975.78
6. Step 6: Final answer
   x = 1,763.00